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ABSTRACTION: Simplifying the complexities of the real world by ignoring (hopefully) unimportant details while doing economic analysis. Abstraction is often criticized because it's, well, it's JUST NOT REALISTIC. However, when done correctly (ignoring things that JUST DON'T MATTER), then the pursuit of knowledge is greatly enhanced by abstraction. For example, when travelling cross country along a high-speed interstate highway, a paper road map is a handy tool. It shows towns and cities along the way, the major intersections, rest stop locations, and other important points of interest. However, it ignores unimportant details. It doesn't realistically show the location of every tree, bush, or blade of grass. Why bother? This information won't enhance your road trip.
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FOUR-SECTOR AGGREGATE EXPENDITURES LINE A graphical depiction of the relation between aggregate expenditures by the four macroeconomic sectors (household, business, government, and foreign) and the level of aggregate income or production. The four-sector aggregate expenditures line combines consumption expenditures, investment expenditures, government purchases, and net exports. The slope of this aggregate expenditures line is based on the marginal propensity to consume, adjusted for marginal propensities of the other expenditures that are assumed to be induced when constructing the line. This is one of three aggregate expenditures lines based on the number of sectors included. The others are the two-sector aggregate expenditures line and the three-sector aggregate expenditures line.
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RED AGGRESSERINE
[What's This?]
Today, you are likely to spend a great deal of time flipping through the yellow pages wanting to buy either a large stuffed brown and white teddy bear or a replacement washer for your kitchen faucet. Be on the lookout for pencil sharpeners with an attitude.
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This isn't me! What am I?
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Much of the $15 million used by the United States to finance the Louisiana Purchase from France was borrowed from European banks.
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"Anyone who has never made a mistake has never tried anything new. " -- Albert Einstein, physicist
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AOQL
Average Outgoing Quality Limit
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